Improvement in lawn-mowers



( wtitrd .gtatrt haun @lil THOMAS ooLnWEL ANo cnoiicn GHADB'ORN, nor NEWBURG, NEW i a YORK.

. Letters Patent'No'. 105,731, dated my 26,1870.

. mrnovmunm m LAwN-MoWERs,

V The Schedule referred toin these Letters Patent andmaking part0! the same.

To an whom it may concern w v Be it known that lwe, THOMAS UoLnwnLnand,

Gnonen L. OHADBOIimof Newburg, in the countyof Orange and State of New York, have invented a new and improvedLawn-Me tver; and we do hereby declare that the following is a fnll,'olear, and exact description of the same, reference being bad to the accompanying drawing and to the letters of reference marked thereon.v

V. Figure 1 represents a plan of the whole machine.

wiper,'as hereinafter described; and

Secondly, in the construction and combination of i the handle, with itsmeans of adjustment, as set forth. 7

Referring to the drawing,- e

. A Aare the side frames/which carry all the parts of the machine.

This drum 0 is grooved or ribbed on its surface, to increase friction on the ground. r a On the same shaft 1), with the drum 0, is placed onelarge' spur gear, E loose on the shaft, but to this gear is secured the ratchet H, on the side toward the drum 0, which ratchet sets the gearing in motion when themachine is pushedforward, but leaves the i gearing standing still when the machine is pulled backward; i

.E is the ring cast on the drum.

It h hare the cogs of the ratchet. 'i 'i 'i, the balls or rollers, placed in the spaces between the ratchet arid the ring, and, by their own gravity, the balls will always fall toward the lower part.

When the machine is pushed forward, the drum is revolving, as marked by an arrow, and the inner surface of the rim F has a tendency to move the balls or rollers toward the narrower part of the space, in this way wedging theballs or rollers i i close into the 00- centric space, and moving the ratchet along with the r i These balls maybein any possible position. One of them, at least, will always be wedged in by its own weight, while the others may be loose; but, when the a machine is startedfrom any place, the gear will be started at the same time, and, with it, the wiper.

, By turning the drum 0 the other way, the balls or will not tnrm v V One pair of intermediate gears, I and K, is secured to one of the frames A by a stud, L, on which they revolve, the smaller 0'ne, I, gearing into the large spur-wheel E, and the larger one, K, gearing into the small pinion M, which sets the spiral cutters in mo tion.

O O are the two cast-iron bars, to which are bolted the steelcutters o 0 The cross-bars P. P connect the two bars 0 O and the journals Q Q are cast 'on these cross-bars.

is the cutter-Liar for the bottom knife; While this-is'stationary 0h.thefi'ame A A, the wiper O O .is adjustable by means of its movable journalsS S.

The height of the cutter-bar above the ground is adj nstable by the front rollers Z- Z, their, centers being movable in tlic'slot W at the front end ofthe frames A A.

T'lhe handle y is simply made of two separate bars of iron, united in the center by a cast-iron plate, 51

q p with two cast-iron square sleeves cast on, which plate -To them are fastened the bearings B B of the e main drum 0.

is placed over the bars before they are bent to their shape, when finished.

A wooden handle, y, connects the two bars at their upper ends f r 'This handle 3 is movable around the two bolts 3 g, which hold it to the frame A, and the other end can be lowered'or raised, and held in a' suitable position,

the frame. These clamps are held by a set-screw, and have two arms, with slots, at different distances from the center, into which the legs of the handle are fitted. The height of the handle is adj ustcd by placing it in the suitable slot, and then fasten the clamps u u to the brace-rod U.

rod U, as specified.

THOMAS OOLDWELL.

GEORGE L. OHADBORN,

Witnesses: JNO. Q. N'o'n,

ALBERT Non.

i rollers 'i i will be eased in their places, andthe gear by clamps u a on t'hcbrace-rod U, at the back end of bination with the adjustable arms u u, on the brace- 

